validateMobileNumber static method

String? validateMobileNumber({
  1. @required String? number,
})

Implementation

static String? validateMobileNumber({@required String? number}) {
  RegExp regExp = new RegExp(validMobileNumberPattern.toString());
  if (number!.isEmpty) {
    return StringConstants.mobile_empty_msg;
  } else if (!regExp.hasMatch(number)) {
    return StringConstants.valid_mobile_msg;
  }
  return null;
}